Ehh, I would assume you are in the right place as this is about help for your site.
Well you can easily do this with a form(of course) and a little PHP magic.
PHP:
<?PHP
// SET VARIABLES / THE INFORMATION THE FORM POSTED
$to = "name@domain.com";
$from = $_POST['email'];
$subject = "EMAIL SUBJECT HERE";
$name = $_POST['name'];
$message = $_POST['message'];
$headers .= "From: {$from}" . "\r\n";
$headers .= "Reply-To: {$from}" . "\r\n";
$headers .= 'X-Mailer: PHP/' . phpversion();
// CHECK WHETHER ANY OF THE FIELDS ARE EMPTY. NOTE: || means OR
if ($from == "" || $name == "" || $message == "")
{
// CHECK IF EMAIL FOLLOWS PATTERN: NAME@DOMAIN.COM/CO.UK/ORG.NET ETC
if (ereg("[[:alnum:]]+@[[:alnum:]]+\.[[:alnum:]]+", $from))
{
// IF ANY OF THE FIELDS ARE EMPTY SHOW THIS MESSAGE.
echo "<font color=red><center>Not all required fields were filled in!";
} else {
echo "<font color=red><center>You MUST enter a valid email address!";
}
} else {
// CREATE THE BODY OF THE MESSAGE
$body .= "Subject: {$subject}\n";
$body .= "From: {$from}\n";
$body .= "Message: \n{$message}\n";
// SEND THE MAIL
mail($to, $subject, $body, $headers);
echo "<font color=red><center>Mail Sent!</center></font>";
}
?>
And then all you need is a form that has 3 fields(at least these three): name, email, message
Those three exactly(lower case and all), since this is what the PHP will look for. That script can be customized a bit and you can do that yourself(if you know how) or you can ask for help.
Please Note: that PHP script will simply display a message that either sends the script or reports an error. To redirect the page back to your site(like a 'success' page), add this line right after the 'Mail Sent!' line:
PHP:
echo "<meta HTTP-EQUIV='REFRESH' content='0; url=http://www.yoursite.com/'>";